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121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
#!/usr/bin/env python
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"""Import the given python module(s) and report error(s) encountered."""
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from __future__ import absolute_import, print_function
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import contextlib
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import imp
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import os
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import re
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import sys
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import traceback
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try:
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from StringIO import StringIO
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except ImportError:
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from io import StringIO
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def main():
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"""Main program function."""
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base_dir = os.getcwd()
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messages = set()
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for path in sys.argv[1:]:
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capture = Capture()
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try:
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with open(path, 'r') as module_fd:
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with capture_output(capture):
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imp.load_module('module_import_test', module_fd, os.path.abspath(path), ('.py', 'r', imp.PY_SOURCE))
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capture_report(path, capture, messages)
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except BaseException as ex: # pylint: disable=locally-disabled, broad-except
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capture_report(path, capture, messages)
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exc_type, _, exc_tb = sys.exc_info()
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message = str(ex)
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results = list(reversed(traceback.extract_tb(exc_tb)))
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source = None
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line = 0
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offset = 0
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for result in results:
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if result[0].startswith(base_dir):
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source = result[0][len(base_dir) + 1:].replace('test/runner/import/', '')
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line = result[1] or 0
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break
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if not source:
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# If none of our source files are found in the traceback, report the file we were testing.
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# I haven't been able to come up with a test case that encounters this issue yet.
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source = path
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message += ' (in %s:%d)' % (results[-1][0], results[-1][1] or 0)
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elif isinstance(ex, SyntaxError):
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if ex.filename.endswith(path): # pylint: disable=locally-disabled, no-member
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# A SyntaxError in the source we're importing will have the correct path, line and offset.
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# However, the traceback will report the path to this importer.py script instead.
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# We'll use the details from the SyntaxError in this case, as it's more accurate.
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source = path
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line = ex.lineno or 0 # pylint: disable=locally-disabled, no-member
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offset = ex.offset or 0 # pylint: disable=locally-disabled, no-member
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message = str(ex)
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# Hack to remove the filename and line number from the message, if present.
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message = message.replace(' (%s, line %d)' % (os.path.basename(path), line), '')
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message = re.sub(r'\n *', ': ', message)
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error = '%s:%d:%d: %s: %s' % (source, line, offset, exc_type.__name__, message)
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if error not in messages:
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messages.add(error)
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print(error)
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if messages:
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exit(10)
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class Capture(object):
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"""Captured output and/or exception."""
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def __init__(self):
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self.stdout = StringIO()
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self.stderr = StringIO()
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def capture_report(path, capture, messages):
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"""Report on captured output.
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:type path: str
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:type capture: Capture
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:type messages: set[str]
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"""
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if capture.stdout.getvalue():
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message = '%s:%d:%d: %s: %s' % (path, 0, 0, 'Output', 'Import resulted in output to stdout.')
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messages.add(message)
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print(message)
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if capture.stderr.getvalue():
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message = '%s:%d:%d: %s: %s' % (path, 0, 0, 'Output', 'Import resulted in output to stderr.')
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messages.add(message)
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print(message)
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@contextlib.contextmanager
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def capture_output(capture):
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"""Capture sys.stdout and sys.stderr.
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:type capture: Capture
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"""
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old_stdout = sys.stdout
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old_stderr = sys.stderr
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sys.stdout = capture.stdout
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sys.stderr = capture.stderr
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try:
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yield
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finally:
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sys.stdout = old_stdout
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sys.stderr = old_stderr
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if __name__ == '__main__':
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main()
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